can presuppose
Regular verb: presuppose - presupposed- presupposed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can presuppose
you can presuppose
he can presuppose
we can presuppose
you can presuppose
they can presuppose 	I can be presupposing
you can be presupposing
he can be presupposing
we can be presupposing
you can be presupposing
they can be presupposing	I can have presupposed
you can have presupposed
he can have presupposed
we can have presupposed
you can have presupposed
they can have presupposed	I can have been presupposing
you can have been presupposing
he can have been presupposing
we can have been presupposing
you can have been presupposing
they can have been presupposing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot presuppose
you cannot presuppose
he cannot presuppose
we cannot presuppose
you cannot presuppose
they cannot presuppose 	I cannot be presupposing
you cannot be presupposing
he cannot be presupposing
we cannot be presupposing
you cannot be presupposing
they cannot be presupposing	I cannot have presupposed
you cannot have presupposed
he cannot have presupposed
we cannot have presupposed
you cannot have presupposed
they cannot have presupposed	I cannot have been presupposing
you cannot have been presupposing
he cannot have been presupposing
we cannot have been presupposing
you cannot have been presupposing
they cannot have been presupposing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I presuppose?
can you presuppose?
can he presuppose?
can we presuppose?
can you presuppose?
can they presuppose? 	can I be presupposing?
can you be presupposing?
can he be presupposing?
can we be presupposing?
can you be presupposing?
can they be presupposing? 	can I have presupposed?
can you have presupposed?
can he have presupposed?
can we have presupposed?
can you have presupposed?
can they have presupposed? 	can I have been presupposing?
can you have been presupposing?
can he have been presupposing?
can we have been presupposing?
can you have been presupposing?
can they have been presupposing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not presuppose?
can you not presuppose?
can he not presuppose?
can we not presuppose?
can you not presuppose?
can they not presuppose? 	can I not be presupposing?
can you not be presupposing?
can he not be presupposing?
can we not be presupposing?
can you not be presupposing?
can they not be presupposing? 	can I not have presupposed?
can you not have presupposed?
can he not have presupposed?
can we not have presupposed?
can you not have presupposed?
can they not have presupposed? 	can I not have been presupposing?
can you not have been presupposing?
can he not have been presupposing?
can we not have been presupposing?
can you not have been presupposing?
can they not have been presupposing?